使用ajax获取远程页面信息

长平狐 发布于 2012/08/30 14:31
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当我们点击表格里面的标题显示相关的详细信息,比如点击新闻标题显示正文,而正文通常是在一个页面里面,通过获取传递的参数id查询数据库,然后显示出来

效果图如下:

先贴前台代码:其中关键代码是 通过span标记的data(自定义属性)绑定Id

  <asp:GridView ID= " GvCollect " runat= " server " AutoGenerateColumns= " False " 
        DataKeyNames= " Id " onrowdeleting= " GvCollect_RowDeleting " 
        EnableModelValidation= " True ">
     <Columns>
     <asp:BoundField DataField= " Id " HeaderText= " 编号 " />
         <asp:TemplateField HeaderText= " 标题 ">           
             <ItemTemplate>
               <span  class = " showCon "  data= ' <%#Eval("Id")%> ' ><%# Eval( " Title " ) %></span>               
             </ItemTemplate>
         </asp:TemplateField>
     <asp:BoundField DataField= " AddTime " HeaderText= " 时间 " />
     <asp:TemplateField HeaderText= " 操作 ">
     <ItemTemplate>
     <a  href= " Show_Coll.aspx?id=<%# DataBinder.Eval(Container.DataItem, "Id " ) %> " target= " _blank ">查看</a>
         <asp:LinkButton ID= " Lbtn " runat= " server " CommandName= " delete " OnClientClick= " return confirm('确定删除') ">删除</asp:LinkButton>
     </ItemTemplate>
     </asp:TemplateField>
     </Columns>
    </asp:GridView>
    
    <table width= " 100% ">
        <tr>
            <td>
                <asp:Button ID= " BtnAllMove " runat= " server " Text= " 全部入库 " onclick= " BtnAllMove_Click " />                  
                <asp:Button ID= " BtnAllDelete " runat= " server " Text= " 清空所有记录 " onclick= " BtnAllDelete_Click " />                   
            </td>
            <td>
                &nbsp;</td>
        </tr>
        <tr>
            <td>
                &nbsp;</td>
            <td>
                &nbsp;</td>
        </tr>
    </table>

然后是弹出层快代码:

< div  id ="divTip"  title ="内容显示"  style ="overflow:auto;" >
        
     </ div >

接下里看css样式引用文件和js调用(我用的是jqueryUI库)

  <link href="js/jquery-ui-1.8.16.custom.css" rel="stylesheet" type="text/css" />  
    <script src="js/jquery-1.4.1.min.js" type="text/javascript"></script>
    <script src="js/jquery-ui-1.8.16.custom.min.js" type="text/javascript"></script>

 

View Code
<script type="text/javascript">
        $( function () {
         // 初始化弹出层,加载是不显示
            $("#divTip").dialog({
                show:  null,
                width: 500,
                height: 500,
                bgiframe:  false,
                autoOpen:  false,
                buttons: {
                    "Ok":  function () {
                        $( this).dialog("close");
                    },
                    "Cancel":  function () {
                        $( this).dialog("close");
                    }
                }
            });
         // 取消对象自身的事件冒泡
            $("#divTip").bind("click",  function (event) {
                event.stopPropagation();
            });

             // 动态提示类弹出层,点击对象时弹出装载页面
            $(".showCon").css("cursor", "pointer").click( function (event) {
                $("*").stop();
                $("#divTip").dialog("close");
                event.stopPropagation();
                 var top = $(event.target).offset().top + 20;
                 var left = $(event.target).offset().left;
                 // 取得对象源的id
                 var objId = $(event.target).attr("data");
                //  alert(objId);
                $.ajax({
                    type: "POST",
                    url: "Show_Coll.aspx",
                    data: "id=" + objId,
                    success:  function (con) {
                        $("#divTip").html(con);
                    }
                });
                 //  $("#divTip").html(objId);
                $("#divTip").dialog("option", "position", [left, top]);
                $("#divTip").dialog("open");
            });

        })   
    </script>

接下里是服务器页面:

一般我们获取参数都是 Request.QueryString[""],但是这个是获取url中的参数,而现在是获取http对象中的,,所以用Request[""],

否则取不出数据

 

   // Request.QueryString["id"] == null
             if (Request[ " id "]== null )
                 return  0;
             return Convert.ToInt32(Request[ " id "].ToString());

 


原文链接:http://www.cnblogs.com/Jaylong/archive/2011/11/12/aj12.html
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